Aprilia RSV4 and Tuono V4 Key Replacement

Quick answerThe Aprilia RSV4 and Tuono V4 use transponder keys registered in the bike's electronics, with two keys supplied and room for four. Programming new keys erases the old codes, so every key you want to keep must be present. If you are down to one key, get a spare now: Aprilia's manual says that once the second is also lost a copy cannot be made.

Aprilia RSV4 and Tuono V4 key quick facts

The 2009 RSV4 Factory owner's manual says the immobilizer can register up to four keys.
The same manual says the programming procedure erases the pre-existing codes and is performed at an Aprilia dealer.
Piaggio's 2021 dealer bulletin for the RSV4 1100 tells technicians not to begin key learning unless both keys are available.
That bulletin gives the factory user code as 00000.
The Tuono V4 manual says that if an immobilizer fault is found at start-up, the panel asks for the user code.

Aprilia RSV4 and Tuono V4 key types by year

Years	Models	Key type	Chip	Notes
2009-2020	RSV4 R, Factory, RR, RF; Tuono V4 from 2011	transponder key	yes	Two keys supplied, one a spare. Up to four registered. A code menu in the dash lets the owner change the user code.
2021-present	RSV4 1100, Tuono V4 1100	transponder key	yes	Keys are reset and relearned through the instrument panel with the dealer diagnostic tool. A 2021 panel software update improved the key learning function.

How the RSV4 key system works

Each key has a transponder in the grip. When you switch on, it answers a radio signal from the bike, and the manual describes that reply as a sort of password by which the electronics recognize the key. The system arms itself automatically whenever the key is removed. Nothing about the blade tells you this is happening, which is why a key cut at a hardware store turns the lock and lights the dash but leaves the engine dead.

Up to four keys can be registered. Registration is all or nothing: the procedure wipes the existing codes and stores only the keys that are presented. Aprilia tells owners who want a new key to bring all the keys they intend to use.

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The user code and the 2021 bulletin

Since the first RSV4 the dash has had a code menu, with functions for changing the code and for resetting it. On a new bike the code is 00000. It matters twice. If the immobilizer reports a fault at start-up, the panel asks for the code so you can start the bike and ride it to service. And when keys are relearned, the procedure asks for it first.

Piaggio's technical communication for the RSV4 1100 shows how the dealer does it. After a panel software update, the technician resets the keys through the instrument panel, which asks for the user code, and both keys are stored again in the same session. The bulletin is printed with a warning in capitals not to begin unless both keys are available, and to obtain all keys from the customer first. If you take your bike in for that update, take both keys.

One key left, or none

The 2009 manual puts it plainly. Keep the second key in a safe place, because if the second is also lost it is not possible to make another copy, and that would require the replacement of various components of the vehicle, not just the ignition switch. That is the dealer position on an all-keys-lost RSV4, and on a bike like this the parts involved are not cheap.

With one working key, a spare is a routine programming job as long as that key and the user code are available. With none, the options depend on the model year, and a locksmith with the right equipment can on some versions program keys to the existing electronics instead of replacing them. Call with the year and VIN and we will tell you honestly which case yours is.

What to have ready

Every key you have, including broken ones
The user code, if it was ever changed from 00000
Photo ID and the title or registration in your name
A charged battery, or mains power nearby, since programming needs steady voltage

Aprilia RSV4 and Tuono V4 key FAQ

How many keys can an RSV4 or Tuono V4 have?

The owner's manual says the immobilizer can register up to four keys. Two are supplied with the bike.

I bought a used RSV4 with one key. Is that a problem?

It runs fine, but you have no backup, and Aprilia's manual says that once the last key is lost a copy cannot be made. Have a second key programmed, and ask the seller whether the user code was ever changed.

The dash is asking me for a code. What is it?

That is the user code request, which appears when the panel finds an immobilizer fault at start-up. The factory code is 00000. Entering it lets you start the bike, and the panel then shows a service warning so you get the fault checked.

Will my old key still work after a new one is programmed?

Only if it was present. The procedure erases the existing codes and stores the keys presented, so a key left at home stops starting the bike.

The immobilizer system on this bike

Piaggio Immobilizer: Vespa Master Keys and Lost KeysThe Piaggio immobilizer on Vespa and Piaggio scooters uses one master key, with a red or brown grip, and blue or black keys for daily riding.

More Aprilia models

Services for this bike

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How Many Keys Should Come With a Used Motorcycle?Most motorcycles are delivered with two keys or fobs, and many also come with a third item that matters more than either: a master or programming key, a code card, a key number tag or a security PIN.
Harley Saddlebag and Tour-Pak Lock Keys: What Matches WhatOn Harley-Davidson Touring models, the factory hard saddlebags and the Tour-Pak are opened with the same barrel key as the ignition, according to Harley's owner's manuals.

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Page last updated November 14, 2026.